Fix #182 - Add support for lintr

README.md

@@ -103,6 +103,7 @@ name. That seems to be the fairest way to arrange this table.
 | Pug | [pug-lint](https://github.com/pugjs/pug-lint) |
 | Puppet | [puppet](https://puppet.com), [puppet-lint](https://puppet-lint.com) |
 | Python | [autopep8](https://github.com/hhatto/autopep8), [flake8](http://flake8.pycqa.org/en/latest/), [isort](https://github.com/timothycrosley/isort), [mypy](http://mypy-lang.org/), [pylint](https://www.pylint.org/), [yapf](https://github.com/google/yapf) |
+| R | [lintr](https://github.com/jimhester/lintr) |
 | ReasonML | [merlin](https://github.com/the-lambda-church/merlin) see `:help ale-integration-reason-merlin` for configuration instructions
 | reStructuredText | [proselint](http://proselint.com/)|
 | RPM spec | [rpmlint](https://github.com/rpm-software-management/rpmlint) (disabled by default; see `:help ale-integration-spec`) |

ale_linters/r/lintr.vim

@@ -0,0 +1,15 @@
+" Author: Michel Lang <michellang@gmail.com>, w0rp <devw0rp@gmail.com>
+" Description: This file adds support for checking R code with lintr.
+
+function! ale_linters#r#lintr#GetCommand(buffer) abort
+    return ale#path#BufferCdString(a:buffer)
+    \   . 'Rscript -e ' . ale#Escape('lintr::lint(commandArgs(TRUE))') . ' %t'
+endfunction
+
+call ale#linter#Define('r', {
+\   'name': 'lintr',
+\   'executable': 'Rscript',
+\   'command_callback': 'ale_linters#r#lintr#GetCommand',
+\   'callback': 'ale#handlers#gcc#HandleGCCFormat',
+\   'output_stream': 'both',
+\})

doc/ale.txt

@@ -194,6 +194,7 @@ The following languages and tools are supported.
 * Pug: 'pug-lint'
 * Puppet: 'puppet', 'puppet-lint'
 * Python: 'autopep8', 'flake8', 'isort', 'mypy', 'pylint', 'yapf'
+* R: 'lintr'
 * ReasonML: 'merlin'
 * reStructuredText: 'proselint'
 * RPM spec: 'spec'